Amiigo may look like any other wrist-worn activity monitor, but it not only has an array of sensors to track your heart rate of skin temperature, it also claims to know what you're doing without you telling it what you're doing. It comprises of a bracelet and show clip that work independently, but jointly send feedback to your mobile device. Amiigo can also decipher the difference between jumping jacks, a jog, and dead lifts.